#include <stdio.h>
#include <string.h>
#include <stdlib.h>

#define IDE 1
#define EMPTY -1
#define SIN -2
#define COS -3
#define EXP -4
#define LOG -5
#define LN -6

#define MUL 1
#define DIV 0

#define MAX_ALL 100
#define MAX_STR 10
#define MAX_OPERA 20


struct function_info
{
	int multi_fun[MAX_OPERA];
	int opera_flag[MAX_OPERA];
	double coef;
	int length;
};

